P varies directly as the square root of q. P=8 when q =25 find p when q = 100

Answer 1

The formula for direct variation, which is what is indicated in the problem, is
P = sqrt(q) x A. A is a nonzero value, and finding its value will help create a function. 8 = sqrt(25) x A. Solve this and you will find the value of A. Then plug that value of A into the this equation:
P = sqrt(100) x A.

Answer 2

I don't understand